pith. sign in
Pith Number

pith:FYQZREB6

pith:2016:FYQZREB63VFJONBVATTHBSCAYL
not attested not anchored not stored refs pending

NGC 2440 : A morpho-kinematical model

Paulo J.A. Lago, Roberto D.D. Costa

arxiv:1606.01234 v1 · 2016-06-03 · astro-ph.SR · astro-ph.GA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{FYQZREB63VFJONBVATTHBSCAYL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp
2 Internet Archive
3 Author claim open · sign in to claim
4 Citations open
5 Replications open
Portable graph bundle live · download bundle · merged state
The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.
Receipt and verification
First computed 2026-05-18T01:12:59.052246Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

2e2198903edd4a97343504e670c840c2dfa26e740ffd472d2c246280f2c42573

Aliases

arxiv: 1606.01234 · arxiv_version: 1606.01234v1 · doi: 10.48550/arxiv.1606.01234 · pith_short_12: FYQZREB63VFJ · pith_short_16: FYQZREB63VFJONBV · pith_short_8: FYQZREB6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/FYQZREB63VFJONBVATTHBSCAYL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2e2198903edd4a97343504e670c840c2dfa26e740ffd472d2c246280f2c42573
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "4e8da915be18855584086230e763b3eb26367e879e161609ee33e5760e24727c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-06-03T19:50:26Z",
    "title_canon_sha256": "c288ec28bf22401a8c7220aae9e314e52269dcd658a2ad80d2644cb29940f6b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01234",
    "kind": "arxiv",
    "version": 1
  }
}